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Unfathomable | Strategy Game for Teens and Adults | Arkham Horror | Hidden Traitor Board Game | Ages 14+ | 3-6 Players | Average Playtime 120-240 Minutes | Made by Fantasy Flight Games

4.6 4.6 out of 5 stars 301 ratings

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Purchase options and add-ons

Brand Fantasy Flight Games
Material Cardboard
Theme Horror
Genre Cooperative
Number of Players 3 to 6

About this item

  • INTRIGUING THEME: Dive into the Arkham Horror Files universe with Unfathomable, a game of hidden loyalties and devious strategy set aboard the steamship Atlantica.
  • THRILLING GAMEPLAY: Work together with 3 to 6 players to navigate the treacherous waters, manage supplies, and fend off monstrous Deep Ones threatening the ship's safety.
  • HIDDEN TRAITORS: Beware of fellow passengers who may secretly be cultists or terrifying hybrid Deep Ones, plotting to sabotage the voyage and drag the Atlantica to a watery grave.
  • IMMERSIVE EXPERIENCE: Experience the tension of battling swarming Deep Ones while uncovering traitors, all while striving to steer the Atlantica safely to its destination in Boston.
  • HIGH-SEAS SUSPENSE: With eerie underwater nightmares plaguing the investigators and suspicion running rampant, Unfathomable delivers a thrilling and immersive board game experience.

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Unfathomable | Strategy Game for Teens and Adults | Arkham Horror | Hidden Traitor Board Game | Ages 14+ | 3-6 Players | Average Playtime 120-240 Minutes | Made by Fantasy Flight Games


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Product Description

Embark on a journey of mystery and suspense aboard the steamship Atlantica in Unfathomable, the latest installment in the Arkham Horror Files series. As the vessel makes its way to Boston, dark shadows lurk beneath the waves, and the passengers seem unnaturally fixated on the sea. The investigators must grapple with suspicion and hidden loyalties as they navigate the treacherous waters, striving to uncover traitors and fend off the monstrous Deep Ones threatening the ship's safety. In Unfathomable, players must work together to manage supplies, battle swarming Deep Ones, and uncover the nefarious cultists or hybrid Deep Ones among them. With tension mounting and paranoia running high, every decision could spell the difference between survival and disaster. Will you uncover the truth and steer the Atlantica safely to its destination, or will the dark forces lurking below claim victory? Dive into the depths of mystery and intrigue with Unfathomable.


From the brand


From the manufacturer

unfathomable board game
unfathomable board game
unfathomable board game
Unfathomable board game Unfathomable from the abyss board game expansion for adults spooky horror cooperative strategy Arkham Horror The Card Game arkham horror the board game mansions of madness board game eldritch horror board game
Unfathomable Unfathomable: From the Abyss Expansion Arkham Horror The Card Game Arkham Horror 3rd Edition Mansions of Madness Eldritch Horror
Customer Reviews
4.6 out of 5 stars
301
4.6 out of 5 stars
3,407
4.7 out of 5 stars
1,001
4.7 out of 5 stars
2,685
4.8 out of 5 stars
1,901
Type of Game Board Game Board Game Card Game Board Game Board Game Board Game
Number of Players 3-6 Players 3-6 Players 1-4 players 1-6 Players 1-5 Players 1-8 Players
Average Playtime 2-4 Hours 2-4 Hours 1-2 Hours 2-3 Hours 2-3 Hours 2-4 Hours
Recommended Player Age Ages 14+ Ages 14+ Ages 14+ Ages 14+ Ages 14+ Ages 14+
Game Objectives Some players are humans who are fighting for the survival of the ship, while others are traitors sent aboard the ship by mysterious beings to ensure that it never reaches port! Dive into deeper peril with From the Abyss, the thrilling expansion for Unfathomable, featuring new monsters, mechanics, and gameplay variety. As the Ancient Ones seek entry to our world, one to two investigators (or up to four with two Core Sets) work to unravel arcane mysteries and conspiracies. Stop occult rituals and destroy alien creatures by gathering clues, defeating terrifying monsters, and finding tools and allies. Eight brave investigators stand ready to confront four scenarios of fear and mystery, collecting weapons, tools, and information, solving complex puzzles, and fighting monsters, insanity, and death. Travel the globe to save the world from a diabolical, omnipotent Ancient One
Game Setting Steamship SS Atlantica Steamship SS Atlantica Arkham City Arkham City Innsmouth and Arkham All around the world in the year 1926
Horror Game
Mystery Game
Cooperative Game
Expansion Option

What's in the box

  • 1 Learn to Play, 1 Rules Reference, 1 Game Board with 4 Resource Dials, 22 Plastic Monster Figures, 10 Character Sheets, 3 Traitor Reference Sheets, 6 Player Reference Sheets, 10 Character Standees, 1 Current Player Token, 4 Traitor Rings, 9 Passenger Tokens, 1 8-sided Die,1 Travel Token, 1 Ritual Token, 14 Loyalty Cards, 70 Mythos Cards, 2 Title Cards, 20 Spell Cards, 20 Waypoint Cards, 20 Item Cards, 9 Ship Damage Cards, 10 Feat Cards, 126 Skill Cards
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    Customer reviews

    4.6 out of 5 stars
    4.6 out of 5
    301 global ratings
    Bad copy quickly replaced. Great group game, great customer services.
    5 Stars
    Bad copy quickly replaced. Great group game, great customer services.
    I was looking forward this game. It finally arrived, incomplete. The face of father Dagon was just missing. That's not the kind of creepy i was looking for.UPDATE: Amazon quickly replaced the faulty game. Good game, great customer service.
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    Top reviews from the United States

    Reviewed in the United States on March 17, 2022
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    Reviewed in the United States on June 19, 2023
    Reviewed in the United States on November 11, 2022
    Customer image
    5.0 out of 5 stars Bad copy quickly replaced. Great group game, great customer services.
    Reviewed in the United States on November 11, 2022
    I was looking forward this game. It finally arrived, incomplete. The face of father Dagon was just missing. That's not the kind of creepy i was looking for.

    UPDATE: Amazon quickly replaced the faulty game. Good game, great customer service.
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    Reviewed in the United States on December 30, 2021

    Top reviews from other countries

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    Freddy Lizama
    5.0 out of 5 stars Excelente juego
    Reviewed in Mexico on January 24, 2024
    Customer image
    Freddy Lizama
    5.0 out of 5 stars Excelente juego
    Reviewed in Mexico on January 24, 2024
    Recomendable para quienes gustan de imaginar y hacer inmersión el juego. Una vez que aprendes a jugarlo fluye perfectamente. Te llevará un poco más de dos horas una partida pero vale la pena.
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    The game was so much fun Amazing for young adults and older Its challenging and exciting expressing your suspicions, honestly its a 10/10. There is also an extremely helpful youtube tutorial on how to play which makes life easier. All the monsters and characters are remarkably well designed, you can tell a lot of Love was put into making this game.
    5.0 out of 5 stars High quality Top Tier Mystery survival game.
    Reviewed in Canada on August 20, 2023
    gustave154
    5.0 out of 5 stars BSG is back and better than ever
    Reviewed in Singapore on November 17, 2021
    Nes
    5.0 out of 5 stars Fun game
    Reviewed in Canada on January 9, 2023
    Tasha chamberlain
    4.0 out of 5 stars Great game
    Reviewed in Canada on May 3, 2023